Hail, Warren
- When
- May 16, 3:11 AM CST
- Where
- Warren County, Indianola
- Measured
- 0.88 in hail
- Property damage
- $1,000
- Reported by
- UNKNOWN
- Coordinates
- 41.370, -93.570
Thunderstorms developed in a zone of warm air advection taking place over Iowa. Many of the storms produced marble size hail and gusty winds, however there were few reports of severe weather.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS DMX wrote it up.
Thunderstorms developed in a zone of warm air advection taking place over Iowa. Many of the storms produced marble size hail and gusty winds, however there were few reports of severe weather. One storm dropped nickel size hail on the town of Indianola as it passed overhead, causing spotty light damage.
The Des Moines radar (KDMX), 42 km away, was scanning. The volume nearest the first event began at 09:11 UTC.
1 hail. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 1999Every state in 1999This day in weather historyWarnings in Iowa, May 1999
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5693358.